Can I do the following on Thunderbird

We have a few W7 Home computers. We use Thunderbird for our email.

Currently, I have it set to Leave Messages on Server for 14 days. This allows my wife to see messages on her computer and then if I look for messages on my computer they get d/l also. But I would like to do the following:

IF I read an email to me on my computer and then delete it as part of Thunderbird, THEN I would like it also deleted on the server. I don't see how to do this. There is a setting to Leave Messages on the server until I delete them, but I assume this means until I go to the server and delete them. Or do I have it mixed up and if I delete it on Thunderbird it will get deleted from the server (which is what I want to happen)?

Same here. I reset the settings to leave messages on the server until I delete them. I then sent myself an email It showed up on Thunderbird and also on my server. I deleted from Thunderbird. But it was still on my server.

So, is there any way to delete a message from the server immediately when deleting from Thunderbird

GWS-- can you check again if that's what is happening on your set-up and if so maybe you can find the setting that does that?
Mel